US2494016A - Exhaust pipe end cover - Google Patents

Exhaust pipe end cover Download PDF

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Publication number
US2494016A
US2494016A US58543345A US2494016A US 2494016 A US2494016 A US 2494016A US 58543345 A US58543345 A US 58543345A US 2494016 A US2494016 A US 2494016A
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United States
Prior art keywords
exhaust pipe
cover
arm
cover member
engine
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Taylor Charles Ralph
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Individual
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Individual
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Priority to US58543345 priority Critical patent/US2494016A/en
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Publication of US2494016A publication Critical patent/US2494016A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/085—Other arrangements or adaptations of exhaust conduits having means preventing foreign matter from entering exhaust conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7898—Pivoted valves
    • Y10T137/7902—Valve mounted on end of pipe
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7898—Pivoted valves
    • Y10T137/7903—Weight biased

Definitions

  • This invention relates to a protecting device in the form of a cover to be mounted on the open end of a vertical exhaust pipe of a tractor or stationary engine, to exclude the elements and insects which otherwise would enter the cylinders of an engine through the open end of the exhaust pipe, when the engine is idle, or in storage.
  • An important object of the invention is to pro vide a protecting cover of this character which is so mounted with respect to balance, that it is exceptionally sensitive in operation, and will open automatically under the influence of the exhaust gases passing from the engine, and will remain open during the period of operation of the engine. but will close immediately with the stopping of the engine.
  • Figure 1 is a vertical sectional view through the attachment forming the essence of the present invention, showing the attachment as positioned on the discharge end of an exhaust pipe.
  • Figure 2 is a plan view thereof.
  • Figure 3 is a sectional view taken on line 3-4 of Fig. 1.
  • the attachment comprises a tubular body portion 5 which is formed with slots extending inwardly from the lower end thereof to lend resiliency to the body portion and permit of ready positioning of the body portion over an exhaust pipe.
  • the clamp indicated by the reference character 6 is used to secure the body portion in position after it has been properl located on the discharge end of the exhaust pipe, which in the present showing is indicated by the reference character A.
  • the balance arm I1! is preferably of relatively thin cross section, such as a rectangular cross section having major and minor axes, and the vertical disposition of the 3 Claims. (01. 9859) arm on the cover operates to minimize wind effects in unsheltered areas.
  • the pivot point between the arms 8 and balance arm Ill is located close to an imaginary upward extension of the adjacent peripheral surface of the exhaust pipe and is preferably above a longitudinal line drawn centrally through the balance arm I B. In the embodiment shown I have disclosed the balance arm I! in an upright position. This is especially desirable where the device is exposed to winds and its operation therefore might be affected. However, it is to be understood that I do not limit myself to such an arrangement of parts.
  • the cover is indicated by the reference character H, and is of a diameter to completely close the discharge end of the body portion 5 and at the same time provide a portion which extends beyond the outer surface of the body portion 5.
  • a depending flange I 2 which is annular in formation, the flange being wide and tapered off at its ends to a substantially narrow flange l3. Due to the construction of this flange, a pocket is formed on the cover so that the exhaust gases contacting the cover will collect during the initial movement of the cover to its open position, to insure the opening of the cover under the slightest pressure directed thereto. It might be further stated that the length of the balance arm is such that the weight of the cover which is attached to one end of the balance arm, will be sufficient to overbalance the arm to a slight degree, causing the cover to seat and close the discharge end of the attachment when the pressure against the cover has been relieved due to the stopping of the engine.
  • An automatic protective cover assembly for the discharge and of the upstanding exhaust pipe of an internal combustion engine, and comprising a cover member for closing the open end of the exhaust pipe, bracket means adapted to be secured to the exhaust pipe and including an upstanding portion disposed above said cover member in closed position and close to a vertical projection of the adjacent peripheral surface of the exhaust pipe, an arm of relatively thin cross section having major and minor transverse axes and secured to said cover member with the major axis disposed vertically with respect to said cover member and with a portion of said arm extending laterally of the cover member to form a.
  • balance arm therefor, and a pivot hingedly connecting the arm to the upstanding portion on said bracket means, said pivot being located intermediate the ends of said arm and adjacent the upper edge thereof at a position wherein said arm only partially counterbalances said cover member whereby to facilitate opening of the cover member under the influence of exhaust gases in the exhaust pipe, and wherein the lower edge of said arm can abut against said bracket means whereby to prevent movement of the cover member beyond a vertical plane through said pivot to thus assure automatic closing of the cover member when no gases are emitted from the exhaust pipe.
  • An automatic protective cover assembly for the discharge end of the upstanding exhaust pipe of an internal combustion engine, and comprising a tubular support adapted to be connected to the exhaust pipe, a cover member for closing the open end of the tubular support, means providing a pair of upstanding lugs secured to the tubular support and disposed above said cover member in closed position and close to a vertical projection of the adjacent peripheral surface of the tubular support and defining therebetween an abutment surface, an arm of relatively thin cross section having major and minor transverse axes and secured to said cover member with the major axis disposed vertically with respect to said cover member and with a portion of said arm extending laterally of the cover member to form a balance arm therefor, and a pivot hingedly connecting the arm to the upstanding lugs, said pivot being located intermediate the ends of said arm and adjacent the upper edge thereof at a position wherein said arm only partially counterbalances said cover member whereby to facilitate opening of the cover member under the influence of exhaust gases in the exhaust pipe, and wherein the lower edge of said arm can

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Description

Jan. 10, 1950 c. R. TAYLOR 2,494,016
EXHAUST PIPE END COVER Filed March 29, 1945 INVENTOR.
Patented Jan. 10, g 1950 UNITED STATES PATENT OFFICE EXHAUST PIPE END COVER Charles Ralph Taylor, Scott City, Kans.
Application March 29, 1945, Serial No. 585,433
This invention relates to a protecting device in the form of a cover to be mounted on the open end of a vertical exhaust pipe of a tractor or stationary engine, to exclude the elements and insects which otherwise would enter the cylinders of an engine through the open end of the exhaust pipe, when the engine is idle, or in storage.
An important object of the invention is to pro vide a protecting cover of this character which is so mounted with respect to balance, that it is exceptionally sensitive in operation, and will open automatically under the influence of the exhaust gases passing from the engine, and will remain open during the period of operation of the engine. but will close immediately with the stopping of the engine.
With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claims, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.
Referring to the drawing:
Figure 1 is a vertical sectional view through the attachment forming the essence of the present invention, showing the attachment as positioned on the discharge end of an exhaust pipe.
Figure 2 is a plan view thereof.
Figure 3 is a sectional view taken on line 3-4 of Fig. 1.
Referring to the drawing in detail, the attachment comprises a tubular body portion 5 which is formed with slots extending inwardly from the lower end thereof to lend resiliency to the body portion and permit of ready positioning of the body portion over an exhaust pipe. The clamp indicated by the reference character 6 is used to secure the body portion in position after it has been properl located on the discharge end of the exhaust pipe, which in the present showing is indicated by the reference character A.
Secured to the body portion 5, at a point adjacent to the discharge upper end thereof, is a bracket 1 having a lower transverse portion and a pair of spaced upwardly extending arms 8 which form a bifurcated end disposed above the cover and which are provided with openings to receive the pivot pin 9 on which the balance arm I 0 is pivotally mounted. The balance arm I1! is preferably of relatively thin cross section, such as a rectangular cross section having major and minor axes, and the vertical disposition of the 3 Claims. (01. 9859) arm on the cover operates to minimize wind effects in unsheltered areas. The pivot point between the arms 8 and balance arm Ill is located close to an imaginary upward extension of the adjacent peripheral surface of the exhaust pipe and is preferably above a longitudinal line drawn centrally through the balance arm I B. In the embodiment shown I have disclosed the balance arm I!) in an upright position. This is especially desirable where the device is exposed to winds and its operation therefore might be affected. However, it is to be understood that I do not limit myself to such an arrangement of parts.
The cover is indicated by the reference character H, and is of a diameter to completely close the discharge end of the body portion 5 and at the same time provide a portion which extends beyond the outer surface of the body portion 5.
Forming a part of the cover II is a depending flange I 2 which is annular in formation, the flange being wide and tapered off at its ends to a substantially narrow flange l3. Due to the construction of this flange, a pocket is formed on the cover so that the exhaust gases contacting the cover will collect during the initial movement of the cover to its open position, to insure the opening of the cover under the slightest pressure directed thereto. It might be further stated that the length of the balance arm is such that the weight of the cover which is attached to one end of the balance arm, will be sufficient to overbalance the arm to a slight degree, causing the cover to seat and close the discharge end of the attachment when the pressure against the cover has been relieved due to the stopping of the engine. Likewise, it is to be noted that the disposition of the pivot pin 9 immediately adjacent the surface of the exhaust pipe and above the cover a distance sufficient to pass through the upper edge of the vertically disposed arm will permit the bottom free edge of the arm to strike the body portion of the bracket and prevent the cover from swinging open to a position beyond a vertical position so as to assure automatic closing of the cover.
From the foregoing it will be seen that due to the construction shown and described, the discharge end of an exhaust pipe of a tractor or stationary engine, which is usually vertical, will be completely closed to exclude the elements and prevent insects from collecting in the exhaust pipe or finding their way into the cylinders of the engine damaging the engine.
What is claimed is:
1. An automatic protective cover assembly for the discharge and of the upstanding exhaust pipe of an internal combustion engine, and comprising a cover member for closing the open end of the exhaust pipe, bracket means adapted to be secured to the exhaust pipe and including an upstanding portion disposed above said cover member in closed position and close to a vertical projection of the adjacent peripheral surface of the exhaust pipe, an arm of relatively thin cross section having major and minor transverse axes and secured to said cover member with the major axis disposed vertically with respect to said cover member and with a portion of said arm extending laterally of the cover member to form a. balance arm therefor, and a pivot hingedly connecting the arm to the upstanding portion on said bracket means, said pivot being located intermediate the ends of said arm and adjacent the upper edge thereof at a position wherein said arm only partially counterbalances said cover member whereby to facilitate opening of the cover member under the influence of exhaust gases in the exhaust pipe, and wherein the lower edge of said arm can abut against said bracket means whereby to prevent movement of the cover member beyond a vertical plane through said pivot to thus assure automatic closing of the cover member when no gases are emitted from the exhaust pipe.
2. An automatic protective cover assembly as claimed in claim 1, wherein said cover member is provided with a depending flange snugly surrounding the end of the exhaust pipe and having opposite the pivotal connection for the cover a relatively wide depending portion tapering to a narrow portion adjacent the said pivotal connection whereby to provide a pocket at the discharge end of the exhaust pipe facilitating the pressure lifting of the cover member therefrom under influence of the exhaust gases.
3. An automatic protective cover assembly for the discharge end of the upstanding exhaust pipe of an internal combustion engine, and comprising a tubular support adapted to be connected to the exhaust pipe, a cover member for closing the open end of the tubular support, means providing a pair of upstanding lugs secured to the tubular support and disposed above said cover member in closed position and close to a vertical projection of the adjacent peripheral surface of the tubular support and defining therebetween an abutment surface, an arm of relatively thin cross section having major and minor transverse axes and secured to said cover member with the major axis disposed vertically with respect to said cover member and with a portion of said arm extending laterally of the cover member to form a balance arm therefor, and a pivot hingedly connecting the arm to the upstanding lugs, said pivot being located intermediate the ends of said arm and adjacent the upper edge thereof at a position wherein said arm only partially counterbalances said cover member whereby to facilitate opening of the cover member under the influence of exhaust gases in the exhaust pipe, and wherein the lower edge of said arm can strike the abutment surface between said lugs whereby to prevent movement of the cover member beyond a vertical plane through said pivot to thus assure automatic closing of the cover member when no gases are emitted from the exhaust pipe.
CHARLES RALPH TAYLOR.
REFERENCES CITED The following references are of record in the
US58543345 1945-03-29 1945-03-29 Exhaust pipe end cover Expired - Lifetime US2494016A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676668A (en) * 1949-06-13 1954-04-27 Fmc Corp Apparatus for contacting gaseous fluids and granular solids
US2694358A (en) * 1950-08-01 1954-11-16 Anthes Force Oiler Company Exhaust pipe cover
US3216343A (en) * 1963-08-05 1965-11-09 Farr Co Exhaust cap
US3941151A (en) * 1974-10-07 1976-03-02 Biddle Joseph R Vent pipe check valve
US4742766A (en) * 1986-05-12 1988-05-10 Davison Jerome G Dynamically balanced exhaust pipe cap
US4821629A (en) * 1988-05-04 1989-04-18 Davison Jerom G Dynamically balanced exhaust pipe cap
US20020189248A1 (en) * 2001-06-19 2002-12-19 Martin Unbehaun Exhaust flap
US6637449B2 (en) * 2000-09-11 2003-10-28 Calsonic Kansei Corporation Pressure sensible valve for exhaust muffler and method of assembling same
US20060123774A1 (en) * 2004-12-10 2006-06-15 Lg Electronics Inc. Exhaust structure for engine
US20070101689A1 (en) * 2005-11-09 2007-05-10 William Gaskins Vent protector device for exhaust vents of buildings

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US101972A (en) * 1870-04-19 Ventilator
US245098A (en) * 1881-08-02 Stack for furnaces
US393194A (en) * 1888-11-20 Smoke-stack and attachment
US485375A (en) * 1892-11-01 Matthew faust
US1222394A (en) * 1915-10-21 1917-04-10 Lummus Cotton Gin Co Cowl.
US1532635A (en) * 1924-02-21 1925-04-07 Osbun Justin Edward Ceiling ventilator
US1865295A (en) * 1930-04-23 1932-06-28 Clarence T Arper Furnace draft control device
US1935216A (en) * 1931-02-20 1933-11-14 Olson Mfg Company Ventilator
US1944321A (en) * 1933-02-27 1934-01-23 Walker L C Huxter Ventilator
US2210996A (en) * 1937-08-28 1940-08-13 Economic Steel Rack Co Venting cap
US2350102A (en) * 1941-02-21 1944-05-30 Philip R Fairbanks Exhaust stack control
US2420700A (en) * 1944-10-18 1947-05-20 William C Curphy Exhaust pipe attachment

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US101972A (en) * 1870-04-19 Ventilator
US245098A (en) * 1881-08-02 Stack for furnaces
US393194A (en) * 1888-11-20 Smoke-stack and attachment
US485375A (en) * 1892-11-01 Matthew faust
US1222394A (en) * 1915-10-21 1917-04-10 Lummus Cotton Gin Co Cowl.
US1532635A (en) * 1924-02-21 1925-04-07 Osbun Justin Edward Ceiling ventilator
US1865295A (en) * 1930-04-23 1932-06-28 Clarence T Arper Furnace draft control device
US1935216A (en) * 1931-02-20 1933-11-14 Olson Mfg Company Ventilator
US1944321A (en) * 1933-02-27 1934-01-23 Walker L C Huxter Ventilator
US2210996A (en) * 1937-08-28 1940-08-13 Economic Steel Rack Co Venting cap
US2350102A (en) * 1941-02-21 1944-05-30 Philip R Fairbanks Exhaust stack control
US2420700A (en) * 1944-10-18 1947-05-20 William C Curphy Exhaust pipe attachment

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676668A (en) * 1949-06-13 1954-04-27 Fmc Corp Apparatus for contacting gaseous fluids and granular solids
US2694358A (en) * 1950-08-01 1954-11-16 Anthes Force Oiler Company Exhaust pipe cover
US3216343A (en) * 1963-08-05 1965-11-09 Farr Co Exhaust cap
US3941151A (en) * 1974-10-07 1976-03-02 Biddle Joseph R Vent pipe check valve
US4742766A (en) * 1986-05-12 1988-05-10 Davison Jerome G Dynamically balanced exhaust pipe cap
US4821629A (en) * 1988-05-04 1989-04-18 Davison Jerom G Dynamically balanced exhaust pipe cap
US6637449B2 (en) * 2000-09-11 2003-10-28 Calsonic Kansei Corporation Pressure sensible valve for exhaust muffler and method of assembling same
US20020189248A1 (en) * 2001-06-19 2002-12-19 Martin Unbehaun Exhaust flap
US6732511B2 (en) * 2001-06-19 2004-05-11 Faurecia Abgastechnik Gmbh Exhaust flap
US20060123774A1 (en) * 2004-12-10 2006-06-15 Lg Electronics Inc. Exhaust structure for engine
US7587894B2 (en) 2004-12-10 2009-09-15 Lg Electronics Inc. Exhaust structure for engine
US20070101689A1 (en) * 2005-11-09 2007-05-10 William Gaskins Vent protector device for exhaust vents of buildings
US7566355B2 (en) * 2005-11-09 2009-07-28 William Gaskins Vent protector device for exhaust vents of buildings

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